Separable fastener.



No. 710,863. Patented Oct. 7, I902.

A. HAUG. I SEPARABLE FASTENER.

(Application filed May 11, 1961.)

(No Model.)

WITNESSES.- INVENTOR.

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TUNITED STATES ANDREIV HAUG, OF SAN FRANCISCO,

CALIFORNIA, ASSIGNOR TO ALVIN R.

CLARY, OF SAN FRANCISCO, CALIFORNIA.

SEPARABLE FASTENER.

SPECIFICATION forming part of Letters Patent No. 710,863, dated October 7, 1902.

Application filed May 11, 1901.

To all whmrt it ntrty concern:

Be it known that I, ANDREW HAUG, a citizen of the United States, residing at 116 Second street, in the cityand county of San Francisco, State of California, have invented certain new and useful Improvements in Separa ble Fasteners; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

This invention relates to fasteners, and particularly to separable garment fasteners. One type of fastener in this class which has come into general use consists of a stud with a compressible head adapted to be forced into an aperture of slightly less diameter which engages the neck of the stud, holding the parts together against the expansion of the head. This type at best is only a frictional lock, the repeated locking and separating of which very soon kills the expansibility of the head, rendering the fastener uncertain in its action.

The object of this invention is to provide a fastener positive in action and which cannot be opened except intentionally.

The invention consists of a plate adapted to be attached to one edge of the material to be joined, a stud with an annular groove attached to said plate, a plate adapted to be attached to the opposite edge of the material to be joined, an upset portion upon said second plate with an opening to admit the stud upon the first plate and having a mouth in its side, and a flat spring attached at one end to the second plate, the free end extending through the mouth aforesaid and under said upset portion and having an opening normally out of coincidence with said opening in the upset portion, so that the edge of the opening in the spring will engage the annular groove in the stud, forming a positive engagement of the separable parts of the fastener.

In the drawings, Figure 1 is a plan view of the separable parts of a fastener constructed in accordance with this invention, the parts being disengaged. Fig. 2 is a side elevation of the same. Fig. 3 is an enlarged detail side 5o elevation, in longitudinal cross-section, showing the separable parts in locked engagement.

Serial No. 59,863. (No model.)

In the description of the construction with reference to the drawings the stud will be designated by the letter A, the attaching-plate therefor by A, the plate for the locking mechanisms by B, and the spring by C. The stud A is formed integrally with or may be riveted to the plate A and is provided with the annular groove A provided in the plate A to attach the same to the fabric. The upset B is struck up from the metal of the plate B and is provided with the opening I3 in its top and mouth B in its side. The spring C is attached to the plate B by means of a bur B struck up therefrom, extending through a hole in the end of the spring and riveted. The perforations B provide a means for attaching the plate B to the fabric. To stiffen the plate B, the bead B is upset under the spring C. The spring C consists of a narrow strip bowed upward between the rivet B and upset portion B and having the extension C, with opening C extending through mouth B and under portion B.

The operation is as follows, presuming the separable parts to be upon opposite sides of a placket or the like, the stud A being upon the side that laps over: The edges are drawn together, the stud 'A forced through opening B and locked in position by the edge of the opening C in the spring engaging the annular groove A To separate the parts, it is necessary to compress the bow in the spring, which throws the opening C forward into coincidence with B releasing the stud.

For an illustration of the preferred mode of attaching the fastener to the fabric see dotted construction, Fig. 3. This leaves stud A and portion 13 the only parts exposed, and thisonlywhen partsareseparated. Itisobvious that the various uses of this fastener will call for slight changes in mode of attachment or even in construction of the fastener.

Having thus described this invention, What is claimed is In a separable fastener, the combination with a plate having an upset or raised portion provided with a mouth at one side and an opening or slot in its top, of a bowed or leaf spring having one portion anchored to the plate and free end which extends through the month and under the raised or upset The perforations A are IOC reception in the opening of the spring and en'- gag'ement by the latter.

In testimony whereof I have hereunto set my hand this 29th day of April, 1901.

ANDREW I-IAUG.

Witnesses:

BALDWIN VALE, l GEORGE F. HATTON. 

